The correct answer is that the configuration enforces a 7-year immutable retention policy allowing appends. This is because the ARM template snippet sets a time-based retention policy with a retention period of 2555 days—exactly 7 years—and crucially enables the `allowProtectedAppendWrites` property to true. This combination creates an immutable storage policy that blocks any deletion or modification of existing blobs while still permitting new blocks to be appended to append blobs, which is essential for audit logs or data that must grow without alteration. On the DP-203 exam, this scenario tests your understanding of how Azure Blob Storage immutable policies differ between time-based retention and legal holds, with the append-write allowance being a frequent trap—candidates often assume immutability blocks all writes. Remember the mnemonic: "2555 days, appends allowed" to distinguish this from a strict lock that forbids any changes.
DP-203 Design and implement data storage Practice Question
This DP-203 practice question tests your understanding of design and implement data storage. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It enforces a 7-year immutable retention policy allowing appends.
The ARM template snippet configures a time-based retention policy on the container with a retention period of 2555 days (7 years) and sets `allowProtectedAppendWrites` to true. This enables an immutable storage policy that prevents deletion or modification of existing blobs but allows new append blocks to be added to append blobs, making option C correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
It enables legal hold on the container for 2555 days.
Why it's wrong here
Legal hold is a separate property; this is time-based retention.
✗
It blocks append writes to blobs in the container.
Why it's wrong here
allowProtectedAppendWrites is set to true, so appends are allowed.
✓
It enforces a 7-year immutable retention policy allowing appends.
Why this is correct
2555 days ≈ 7 years; allowProtectedAppendWrites allows log appends.
Related concept
Read the scenario before looking for a memorised answer.
✗
It sets a 3-year retention policy blocking any modifications.
Why it's wrong here
2555 days is approximately 7 years.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the 2555-day value with a 3-year period (1095 days) or misinterpret `allowProtectedAppendWrites` as blocking appends, when in fact it enables them under immutable storage.
Detailed technical explanation
How to think about this question
Azure Blob Storage immutable policies use a WORM (Write Once, Read Many) model enforced at the container level via a policy that locks the configuration after a 24-hour grace period. The `allowProtectedAppendWrites` property specifically allows append operations to append blobs even under a time-based retention policy, which is critical for scenarios like audit logging where data must be appended but never overwritten or deleted. The retention period is calculated in days from the time the policy is applied, and once locked, it cannot be shortened.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-203 question in full detail.
Design and implement data storage — This question tests Design and implement data storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It enforces a 7-year immutable retention policy allowing appends. — The ARM template snippet configures a time-based retention policy on the container with a retention period of 2555 days (7 years) and sets `allowProtectedAppendWrites` to true. This enables an immutable storage policy that prevents deletion or modification of existing blobs but allows new append blocks to be added to append blobs, making option C correct.
What should I do if I get this DP-203 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This DP-203 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-203 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.